浅埋近距离煤层相邻对向开采工作面煤自燃防治技术与应用  

Prevention and control technology of coal spontaneous combustion in adjacent opposite mining face of shallow and close coal seam and its application

作　　者：翟小伟 尚博 郑增荣 刘建平 张金贵 杨占国 ZHAI Xiaowei;SHANG Bo;ZHENG Zengrong;LIU Jianping;ZHANG Jingui;YANG Zhanguo(College of Safety Science and Engineering,Xi’an University of Science and Technology,Xi’an 710054,China;Yulin Institute,Xi’an University of Science and Technology,Yulin 719300,China;Shenmu City Department of Energy,Shenmu 719300,China;No.3 Well,Shenfu Economic Development Zone Haiwan Coal Mine Co.,Ltd.,Shenmu 719300,China)

机构地区：[1]西安科技大学安全科学与工程学院,陕西西安710054 [2]西安科技大学榆林研究院,陕西榆林719000 [3]神木市能源局,陕西神木719300 [4]陕西神木神府经济开发区海湾煤矿有限公司三号井,陕西神木719300

出　　处：《煤矿安全》2021年第6期98-103,共6页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(51974236);陕西省科学技术厅重点研发计划资助项目(2018KW-035)。

摘　　要：浅埋近距离煤层群两"U"型通风工作面相邻对向开采,易发生以上覆采空区为主要漏风通道的串联通风现象,针对海湾煤矿三号井2206工作面因串联通风导致的漏风发火情况,提出"超前-立体化"煤自燃防治技术;采用超前监测的方式,对工作面上下层采空区漏风发火动态进行预测;采用地表回填、巷道喷浆、注氮惰化、阻化剂喷洒、遗煤控制等防灭火技术,对上下煤层立体化分布的煤自燃危险区域进行治理。结果表明:2206工作面串联通风现象得到有效控制,上下层采空区煤自燃得到有效抑制。When two U-shaped ventilation working faces of shallow and near coal seams are mined in opposite directions, the series ventilation phenomenon that the above goaf is the main air leakage channel is easy to occur. In view of the situation of air leakage and combustion caused by series ventilation in 2206 working face of No. 3 well of Haiwan Coal Mine, the prevention and control technology of "leading and three-dimensional"coal spontaneous combustion is proposed. The air leakage and combustion dynamics of the goaf at the lower level of the working face are predicted by the way of advanced monitoring. The prevention and fire extinguishing technologies such as surface backfilling, roadway shotcrete, nitrogen injection inerting, retarder spraying and residual coal control are adopted to control the coal spontaneous combustion risk areas in the three-dimensional distribution of upper and lower coal seams. The results show that the phenomenon of series ventilation in 2206 working face is effectively controlled, and the spontaneous combustion of coal in upper and lower goaf is effectively suppressed.

关 键 词：浅埋近距离煤层 相邻对向开采 上覆采空区 超前监测 立体化封堵 

分 类 号：TD752.2[矿业工程—矿井通风与安全]